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Antibody therapies are a type of biologic. They are typically monoclonal antibodies selected to bind to a particular protein (often a cell-surface protein), and produced using recombinant DNA technology.
Bispecific antibodies — a large family of molecules that are designed to recognize two different epitopes or antigens — come in many formats and can have the potential for novel functionalities that are not provided by mixtures of monoclonal antibodies. This article reviews the current bispecific antibody landscape from a mechanistic perspective, including a comprehensive overview of the pipeline.
Agonistic 4-1BB antibodies developed for cancer immunotherapy have suffered from either hepatotoxicity or insufficient anti-cancer activity. Here the authors determine the contribution of FcγR binding and agonistic strength to these outcomes, and engineer a 4-1BB antibody with potent anti-tumor effect and no liver toxicity in mice.
In the march towards disease-modifying treatments for Alzheimer disease, immunotherapy with antibodies against amyloid-β protein is furthest along in human trials. The news that Biogen’s aducanumab showed no cognitive benefit in phase III trials requires careful analysis of what went wrong and how to position anti-amyloid agents among other therapeutic approaches.